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+// distribution boxbackup-0.10 (svn version: 494)
+//
+// Copyright (c) 2003 - 2006
+// Ben Summers and contributors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// 3. All use of this software and associated advertising materials must
+// display the following acknowledgment:
+// This product includes software developed by Ben Summers.
+// 4. The names of the Authors may not be used to endorse or promote
+// products derived from this software without specific prior written
+// permission.
+//
+// [Where legally impermissible the Authors do not disclaim liability for
+// direct physical injury or death caused solely by defects in the software
+// unless it is modified by a third party.]
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT,
+// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//
+//
+// --------------------------------------------------------------------------
+//
+// File
+// Name: BackupStoreContants.h
+// Purpose: constants for the backup system
+// Created: 2003/08/28
+//
+// --------------------------------------------------------------------------
+
+#ifndef BACKUPSTORECONSTANTS__H
+#define BACKUPSTORECONSTANTS__H
+
+#define BACKUPSTORE_ROOT_DIRECTORY_ID 1
+
+#define BACKUP_STORE_SERVER_VERSION 1
+
+// Minimum size for a chunk to be compressed
+#define BACKUP_FILE_MIN_COMPRESSED_CHUNK_SIZE 256
+
+// min and max sizes for blocks
+#define BACKUP_FILE_MIN_BLOCK_SIZE 4096
+#define BACKUP_FILE_MAX_BLOCK_SIZE (512*1024)
+
+// Increase the block size if there are more than this number of blocks
+#define BACKUP_FILE_INCREASE_BLOCK_SIZE_AFTER 4096
+
+// Avoid creating blocks smaller than this
+#define BACKUP_FILE_AVOID_BLOCKS_LESS_THAN 128
+
+// Maximum number of sizes to do an rsync-like scan for
+#define BACKUP_FILE_DIFF_MAX_BLOCK_SIZES 64
+
+// When doing rsync scans, do not scan for blocks smaller than
+#define BACKUP_FILE_DIFF_MIN_BLOCK_SIZE 128
+
+// A limit to stop diffing running out of control: If more than this
+// times the number of blocks in the original index are found, stop
+// looking. This stops really bad cases of diffing files containing
+// all the same byte using huge amounts of memory and processor time.
+// This is a multiple of the number of blocks in the diff from file.
+#define BACKUP_FILE_DIFF_MAX_BLOCK_FIND_MULTIPLE 4096
+
+// How many seconds to wait before deleting unused root directory entries?
+#ifndef NDEBUG
+ // Debug: 30 seconds (easier to test)
+ #define BACKUP_DELETE_UNUSED_ROOT_ENTRIES_AFTER 30
+#else
+ // Release: 2 days (plenty of time for sysadmins to notice, or change their mind)
+ #define BACKUP_DELETE_UNUSED_ROOT_ENTRIES_AFTER 172800
+#endif
+
+#endif // BACKUPSTORECONSTANTS__H
+